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（1 安徽工業(yè)大學(xué)建筑工程學(xué)院，馬鞍山243032；2中國十七冶集團(tuán)有限公司技術(shù)中心，馬鞍山243000）

[摘要]  通過對型鋼混凝土(SRC)梁-柱節(jié)點試驗數(shù)據(jù)和試驗現(xiàn)象的分析，發(fā)現(xiàn)了SRC梁-柱節(jié)點剪力傳遞的特殊方式，提出了適用于SRC結(jié)構(gòu)的梁-柱節(jié)點剪應(yīng)力-剪應(yīng)變計算的數(shù)值模型。其基本原理是根據(jù)SRC梁-柱節(jié)點內(nèi)部的特殊構(gòu)造及剪力在節(jié)點內(nèi)部分布形態(tài)，計算時將節(jié)點部位分為以下三部分：第一部分為節(jié)點核心區(qū)的型鋼腹板，第二部分為型鋼翼緣所包裹的混凝土組成的區(qū)域，第三部分為核心區(qū)型鋼翼緣外與箍筋之間的混凝土區(qū)域?；谠囼瀰?shù),型鋼腹板的受力條件以及兩部分混凝土的約束條件的不同，分別進(jìn)行其剪切性能力學(xué)方程推導(dǎo)，然后將三者疊加，得到SRC梁-柱節(jié)點剪力傳遞性能的計算公式，并用C++計算機(jī)語言將計算過程編制為計算程序，形成SRC梁-柱節(jié)點剪切性能計算模塊。本模型模擬的結(jié)果和試驗的結(jié)果對比表明此模型能夠較準(zhǔn)確的模擬SRC梁-柱節(jié)點剪切及變形性能。

[關(guān)鍵詞]  型鋼混凝土；節(jié)點；剪切塊；數(shù)值模擬；程序

中圖分類號：TU398⁺.2,TU317.1        文獻(xiàn)標(biāo)識碼：A           文章編號：

Numerical simulation on shear behavior of SRC beam-column joints

Tao Qinglin¹, Yin Wanyun²

(1 School of Civil & Architecture Engineering, Anhui University of Technology, Maanshan 243032, China;

2 Technology Center, China MCC17 group Co., Ltd, Maanshan 243000, China)

Abstract: Based on data of SRC joint test and mechanical equilibrium, this paper proposed a new numerical model to calculate shear strength of steel reinforced concrete (SRC) joint. Because of the special composition of SRC joint, the inner force transmission is complex. The stress region can be divided into three areas. First, shape steel web of joint core. Second, concrete wrapped by shape steel flange. Thirdly, concrete wrapped by stirrup except second area. Mechanics equation of each area was derived base on the test date and the strain conditions of each material. On this basis, a formula was built to simulate shear transfer of SRC joints. Then use the C++ computer language programming the calculation program. Contrast the results of this numerical model with tests’, the simulate curve are close.

Keywords: steel reinforcing concrete; joint; shear panel; numerical simulation; procedure

                            參考文獻(xiàn)：

[1]       曾磊. 型鋼高強高性能混凝土框架節(jié)點抗震性能及設(shè)計計算理論研究[D]. 西安：西安建筑科技大學(xué),2008.

[2]       王燕, 李華軍, 厲見芬. 半剛性梁柱節(jié)點連接的初始剛度和結(jié)構(gòu)內(nèi)力分析[J]. 工程力學(xué), 2003,20(6):65-69.

[3]       Nilanjan Mitra ，Laura N. Lowes. Evaluation, calibration,and verification of a reinforced concrete beam–column joint model [J]. Journal of Structural Engineering, 2007,133 (1):105-120.

[4]       Mansour Ziyaeifara, Hiroshi Noguch. A refined model for beam elements and beam-column joints [J]. Computers and Structures, 2000, 76:551-554.

[5]       趙鴻鐵. 鋼與混凝土組合結(jié)構(gòu)[M]. 北京: 科學(xué)出版社, 2001.

[6]       張譽, 李向民, 李輝,等. 鋼骨高強混凝土梁柱十字節(jié)點抗剪性能的研究[J]. 建筑結(jié)構(gòu),1999,29(7) :6-9.

[7]       唐九如, 陳雪紅. 勁性砼梁柱節(jié)點受力性能與抗剪強度[J]. 建筑結(jié)構(gòu)學(xué)報,1990,11(4): 28-36.

[8] Gustavo Parra Montesinos ， James K Wight. Modeling shear behavior of hybrid RCS beam-column connections [J]. ASCE, 2001, 127(1):3-11.